Finally I have been able to test the car!
Not fully yet, but I have ran it on one engine (and no breaks as the servo still needs splicing) and I love the engine!
Unfortunately there was no other teachers/pupils to film it but I was surprised with the amount of torque just the single engine has, took off like a shot despite weighing nearly a million tons...
I did then fire up the second engine on its own to get it started on its running in.
I did manage to get a video though, shows the car in its nearly completed state.
I cannot wait to get both running, its going to sound amazing!